<template>
  <div class="quill-editor">
    <!-- 图片上传组件辅助-->
    <el-upload class="avatar-uploader" :action="uploadUrl" name="img" :show-file-list="false" :on-success="uploadSuccess" :before-upload="beforeUpload">
    </el-upload>
    <!--富文本编辑器组件-->
    <quill-editor v-model="content" :content="content" :options="editorOption" @blur="onEditorBlur($event)" @focus="onEditorFocus($event)" @ready="onEditorReady($event)" ref="QuillEditor">
    </quill-editor>
    <div v-html="content" />
  </div>
</template>

<script>
import { quillEditor } from 'vue-quill-editor'
import 'quill/dist/quill.core.css';
import 'quill/dist/quill.snow.css';
import 'quill/dist/quill.bubble.css';

export default {
  components: {
    quillEditor
  },
  data () {
    return {
      name: 'register-modules-example',
      content: '',
      editorOption: {
        placeholder: '请在这里输入',
        theme: 'snow', //主题 snow/bubble
        modules: {
          history: {
            delay: 1000,
            maxStack: 50,
            userOnly: false
          },
          toolbar: {
            container: toolbarOptions,
            handlers: {
              image: function (value) {
                if (value) {
                  // 调用element的图片上传组件
                  document.querySelector('.avatar-uploader input').click()
                } else {
                  this.quill.format('image', false)
                }
              }
            }
          }
        }
      },
      uploadUrl: `XXXXXXXX` 	// 服务器上传地址
    }
  },
  methods: {
    // 失去焦点
    onEditorBlur (editor) { },
    // 获得焦点
    onEditorFocus (editor) { },
    // 开始
    onEditorReady (editor) { },
    // 值发生变化
    onEditorChange (editor) {
      this.content = editor.html;
      console.log(editor);
    },
    beforeUpload (file) { },
    uploadSuccess (res) {
      // 获取富文本组件实例
      let quill = this.$refs.QuillEditor.quill
      // 如果上传成功
      if (res) {
        // 获取光标所在位置
        let length = quill.getSelection().index;
        // 插入图片，res为服务器返回的图片链接地址
        quill.insertEmbed(length, 'image', res.result.url)
        // 调整光标到最后
        quill.setSelection(length + 1)
      } else {
        // 提示信息，需引入Message
        this.$message.error('图片插入失败！')
      }
    }
  }
}
</script>
